What is the role of skin testing in the workup of drug eruptions?

Updated: Feb 15, 2019
  • Author: Jonathan E Blume, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

Rechallenge tests by means of skin prick or patch testing to confirm the causative agent is of limited value. Skin tests may be hazardous to patients who have had severe reactions. With the possible exception of acute generalized exanthematous pustulosis (AGEP), patch tests have a low sensitivity and specificity and are not useful. [46]


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